Results 11 to 20 of about 1,239,028 (146)
Gongye shui chuli, 2002 主要研究直流电解杀菌的影响因素及其应用于饮用净水的消毒。电流密度越大,杀菌效果越好。在额定水流量 1m3 /h,选定电流密度 7.5mA/cm2 的情况下,水样的pH值低,杀菌效果好,水中的氨氮含量越高,杀菌效果越差,水中的氯离子浓度越高,杀菌效果越好。在电解杀菌应用于饮用净水的消毒中,杀菌效果十分显著,出水符合饮用净水卫生标准 (CJ94— 1999),且具有持续杀菌作用,可作为一种消毒装置应用于饮用净水的消毒。
梁好 +5 more
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Devouring the Invaders: The Racial‐Ecological Politics of the Chinese Crayfish Trade in Kenya
American Anthropologist, Volume 128, Issue 1, Page 183-194, March 2026.ABSTRACT This article examines entanglements of ecology, race, and foodways at Lake Naivasha in Kenya. Nonnative Louisiana red swamp crayfish (Procambarus clarkii), first introduced to Kenya in the 1960s, were once viewed as invasive but are now sought after as a delicacy among Kenya's Chinese community.
Amanda Kaminsky
wiley +1 more source
The Role of Public Finance to Address the Global Finance Gap for Drinking Water Services
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Meeting SDG target 6.1 for drinking water requires addressing the finance gap between the funds available from tariffs, taxes and transfers, and the life‐cycle costs of sustaining these services. While there are li‐mitations to applying repayable finance to address this gap, governments can be well suited to support both drinking water ...
Kristina Nilsson
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Gongye shui chuli, 1996 通过对某油田生活饮用水常规分析和色/质联机分析,确定该饮用水已受有机物污染,采用LLY-高效过滤器?臭氧氧化?消毒?生物活性炭处理工艺对该水源进行深度处理,使之成为安全饮用水并对其机理作了讨论?
张万友 +6 more
doaj +2 more sources
World Water Policy, Volume 11, Issue 4, Page 1000-1014, November 2025.ABSTRACT The article investigates the management of water supply infrastructure in Natal, Brazil, analyzing the alignment between the utility's investments and user demands during the period from 2016 to 2019. Using data from the Customer Service Center (CAU) and official investment information, it was identified that approximately 67% of complaints ...
Loiane Tamara dos Santos Alves Romanato +3 more
wiley +1 more source
Review of Policy Research, Volume 42, Issue 6, Page 1496-1508, November 2025.ABSTRACT This study adopts a policy‐centric perspective to explore the complex relationship between sustainable nitrogen management (SNM) and the health risks associated with unsafe drinking water. The critical policy challenge lies in balancing the essential role of nitrogen fertilizers in achieving high agricultural productivity with their ...
Mingean Park +3 more
wiley +1 more source
Gongye shui chuli, 2003 简要回顾了最近20多年来国内外对饮用水生物过滤的研究历史,运用Lawrence-McCarty公式和微生物增殖基本方程式，推导了最小基质浓度Smin的计算公式，阐明了第二级利用机理是生物过滤去除饮用水中微量的合成有机物的主要机理，自然有机物是降解微量合成有机物的微生物的主要碳源和能源。探讨了过滤介质、空床接触时间、反冲洗方式、水温、水源水质和预氧化等因素对生物过滤效果的影响，展望了饮用水生物过滤的发展方向及在我国微污染饮用水处理方面的应用前景。
余健, 曾光明, 柏光明, 曾富益
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Functional Ecology, Volume 39, Issue 8, Page 1957-1971, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Many studies have focussed on niche differentiation at the population level to explain the coexistence of similar species. However, information on how individual‐level processes across multidimensional niches shape community dynamics and species coexistence, especially ...
Man Si +8 more
wiley +1 more source
Policy Studies Journal, Volume 53, Issue 3, Page 701-722, August 2025.Abstract Despite the reality that advocates frequently expend significant resources to pass symbolic policies, this policy design has often been neglected by policy studies scholarship. We combine policy design and policy feedback theory to examine this oft overlooked policy design in practice using the case of California's human right to water law ...
Jenny Linder Rempel +1 more
wiley +1 more source
Gongye shui chuli, 1984 六、饮用水消毒与生活污水卫生化饮用水水源和城市生活污水中不同程度地含有有机和无机杂质,各种病原菌、虫卵和病毒等,需要采取灭菌措施方可饮用或处理后复用。传统氯法消毒效果不稳定,不能有效地杀死病原菌、孢子和病毒,还会使水中形成三卤甲烷等数种可能使动物致癌的物质,做为代用消毒剂的ClO2和氯胺对人体。
杨景田
doaj +2 more sources